Number Severity Description/Recommended actions
• If a hardware failure has been detected and all fans in the indicated FRU have failed.
• Inspect the system health information to determine which FRU contains the affected fans. Event 551
or 558 should give further information on the containing FRUs.
• Replace the containing FRUs.
• If the fan is unable to communicate with the EMP.
• Wait for at least 10 minutes and check if the error resolves.
• If the error persists, check that all modules in the enclosure are fully seated in their slots and that their
latches, if any, are locked.
• If this does not resolve the issue, note down the FRU. Ensure the partner FRU is not degraded. If the
partner FRU is degraded, contact technical support.
• If the partner FRU is not degraded, remove and reinsert the indicated FRU.
• If these recommended actions do not resolve the issue, the indicated FRU has probably failed and
should be replaced
When the problem is resolved, an event with the same code will be logged with Resolved severity.
Warning An EMP reported one of the following:
• A fan in the indicated FRU has been uninstalled.
• A fan in the indicated FRU has failed and fan redundancy for the FRU has been lost.
Recommended actions:
If a fan in the indicated FRU has been uninstalled:
• Check that the indicated FRU is in the indicated enclosure.
• If the FRU is not in the enclosure, install the appropriate FRU immediately.
• If the FRU is in the enclosure, ensure that the FRU is fully seated in its slot and that its latch is locked.
• If these recommended actions do not resolve the issue, the indicated FRU has failed and should be
replaced.
If a fan in the indicated FRU has failed and fan redundancy for the FRU has been lost:
• The indicated FRU has failed and should be replaced.
When the problem is resolved, an event with the same code will be logged with Resolved severity.
Resolved A SES alert for a fan in the indicated enclosure has been resolved.
Recommended actions:
• No action is required.
553 Error A temperature sensor reported an alert condition.
• A temperature sensor is outside critical temperature threshold in the indicated FRU.
• The temperature sensor is not able to communicate with the EMP.
Recommended actions:
• If temperature sensor is outside critical temperature threshold in the indicated FRU.
• Check that the ambient temperature is not too warm. For the normal operating range, see your
product's Hardware Installation and Maintenance Guide.
• Check for any obstructions to the airflow.
• Check that all modules in the enclosure are fully seated in their slots and that their latches, if any, are
locked.
• Check that all fans in the enclosure are running.
• Check that there is a module or blank plate in every module slot in the enclosure.
• If none of these recommended actions resolve the issue, the indicated FRU has probably failed and
should be replaced.
• The temperature sensor is not able to communicate with the EMP.
• Wait for at least 10 minutes and check if the error resolves.
118 Events and event messages